- DL manuals
- Sabre
- Diving Instrument
- Vision 3
- User Instructions
Sabre Vision 3 User Instructions
Summary of Vision 3
Page 1
Vision 3 positive pressure facemask user instructions article no. 1074216 issue c 10. 2004.
Page 2: Vision 3
I vision 3 positive pressure facemask contents warnings............................................................................................................................Ii 1. Introduction..........................................................................................................
Page 3: Warnings
Ii warnings please read carefully and fully understand this manual is for use by personnel trained in the use and care of compressed air breathing apparatus, and must not be used as a self-teaching guide by untrained users. Failure to understand or adhere to the vision 3 user instructions may result...
Page 4: Vision 3
Vision 3 1 1. Introduction 1.1 breathable air air used to supply or charge breathing air may be natural or synthetic. The composition of breathable air is given in table 1. Component mass % (dry air) volume % (dry air) oxygen 23.14 20.948 nitrogen 75.52 78.08 argon 1.29 0.93 carbon dioxide 0.05 0.03...
Page 5: Vision 3
Vision 3 2 • weight of apparatus and use of heavy or restrictive clothing. • work environments with extremes of heat or cold. • physical fitness of the wearer. • other factors include emotional stress and fatigue. • supplying cylinder air to a resuscitator or rescue second mask (rsm). It is importan...
Page 6: Vision 3
Vision 3 3 1.8 notified bodies inspec international ltd (no. 0194) 56 leslie hough way, salford, greater manchester, m6 6aj, united kingdom. British standards institute (no. 0086) 389 chiswick high road, london, w4 4al, united kingdom. 2. Apparatus description 2.1 general vision 3 is a class 3 posit...
Page 7: Vision 3
Vision 3 4 3. Pre-use and monthly checks 3.1 checks 1. Check that the facemask is clean and undamaged. 2. Check that the visor is free from blemishes that might impair vision. 3. Check that the head-harness/head net is complete and in good condition; and that the straps are fully slackened. 4. On th...
Page 8: Vision 3
Vision 3 5 3.2.2 facemasks with a net harness 1. Hold the mask by the side of the net harness, place the chin into the chin- cup and pull the mask onto the face. Grasp the pull-strap at the rear of the net harness and pull the net over the head. 2. Tighten harness side straps. Do not over-tighten. 3...
Page 9: Vision 3
Vision 3 6 4. Don apparatus 4.1 attach demand valve 1. Check that the vision 3 head- harness is fully slackened and that the dv is connected to the facemask. 2. Place the neck-strap round the neck. 3. Check that the flat on the dv bypass knob is off (flat on the knob is towards the facemask). 4. Pre...
Page 10: Vision 3
Vision 3 7 2. Tighten harness side straps. Do not over-tighten. 4.2.3 all facemasks inhale deeply to activate the dv and then breathe normally. 4.3 positive pressure test with the cylinder valve open, insert a finger under faceseal and check for a steady outward flow of air. Remove finger and allow ...
Page 11: Vision 3
Vision 3 8 5. Doffing the apparatus warning: do not remove apparatus until well clear of the hazardous area. 1. Hold breath and press the dv reset button. 2. Release the head-harness by pulling the harness buckles forwards. Remove mask and let it hang from the neck-strap. 3. Close the air supply val...
Page 12: Vision 3
Vision 3 9 trigene tm disinfecting wipes are available from scott health and safety limited under article number 2004225 (pack of 20). 6.2 record test details record test details, in accordance with local regulations, within a breathing apparatus logbook (available from scott health and safety limit...
Page 13: Sabre Breathing Apparatus
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